The University of Oklahomahttp://hdl.handle.net/11244/12017-08-18T04:51:39Z2017-08-18T04:51:39ZGROUND STATE ENTANGLEMENT IN 2D STRONGLY INTERACTING BOSE-HUBBARD-TYPE MODELSWang, Weihttp://hdl.handle.net/11244/519132017-08-15T16:59:45Z2017-01-01T00:00:00ZGROUND STATE ENTANGLEMENT IN 2D STRONGLY INTERACTING BOSE-HUBBARD-TYPE MODELS
Wang, Wei
In this dissertation, I present my work on ground state entanglement in Bose-Hubbard-type models. Bose-Hubbard-type models form a wide class of bosonic lattice models and describe systems that can be realized by cold atoms or molecules trapped in optical lattices. By studying ground state entanglement, one can understand quantum phases and phase transitions among them from a microscopic point of view. I will first introduce the two-component Bose-Hubbard model describing Bose-Bose mixtures, and discuss the role played by the interspecies entanglement in the Mott-insulator-to-superfluid phase transition of one component in the presence of a second component. I will show that interspecies entanglement provides a new perspective to understand quantum phases in mixtures. Then I will discuss long-range spatial entanglement in single-species Bose-Hubbard-type models. Specifically, I will build a generic framework for understanding under which conditions these models harbor certain types of topological order. My results provide guidance for future numerical studies which can pave the way for searching experimentally realizable bosonic lattice models harboring nontrivial topological order.
2017-01-01T00:00:00ZASSOCIATIONS AMONG FRIENDSHIP JEALOUSY, FRIENDSHIP QUALITIES, RELATIONAL AGGRESSION, AND GENDER IN ADOLESCENCEKraft, Carolinehttp://hdl.handle.net/11244/519122017-08-15T16:35:41Z2017-01-01T00:00:00ZASSOCIATIONS AMONG FRIENDSHIP JEALOUSY, FRIENDSHIP QUALITIES, RELATIONAL AGGRESSION, AND GENDER IN ADOLESCENCE
Kraft, Caroline
The present study investigated the associations among specific friendship qualities, friendship jealousy, and relational aggression among ninth graders. Friendship qualities and gender were explored as potential moderators of the association between relational aggression and friendship jealousy. Seventy-two participants completed self-report questionnaires about the characteristics of their closest friendship and their proneness to experiencing friendship jealousy. Regression analyses revealed significant main effects of intimate exchange and companionship and recreation in predicting friendship jealousy, but the results did not suggest that friendship qualities and gender act as moderators of the relationship between friendship jealousy and relational aggression. A significant three-way interaction among relational aggression, validation and caring, and friendship jealousy did emerge, and there were significant gender differences in particular friendship qualities. Findings are discussed in light of a a traditional friendship development framework as well as more recent approaches to understanding gender differences in friendship behaviors and expectations.
Keywords: friendship jealousy, friendship qualities, relational aggression
2017-01-01T00:00:00ZEdward Jenner: The Mystery of the MilkmaidsKientz, KatePurkaple, Brenthttp://hdl.handle.net/11244/519112017-08-14T15:59:02Z2017-08-01T00:00:00ZEdward Jenner: The Mystery of the Milkmaids
Kientz, Kate; Purkaple, Brent
Edward Jenner was a physician in the eighteenth and nineteenth century who studied the disease known as cowpox. Traditional medical knowledge demonstrated that milkmaids who contracted the disease cowpox became immune to smallpox. On account of this information Jenner surmised that pus from cowpox blisters (such as shown in the pictures) could be used to inoculate against smallpox. Learn more about Jenner, vaccines, and immunology in this learning leaflet.
2017-08-01T00:00:00ZJohn P. Finley: Tornado ForecastingBoone, BrittanyPurkaple, Brenthttp://hdl.handle.net/11244/519102017-08-14T15:36:44Z2017-08-01T00:00:00ZJohn P. Finley: Tornado Forecasting
Boone, Brittany; Purkaple, Brent
John P. Finley wrote the first book in English devoted to tornadoes. As a member of the US Army Signal Service, Finley's job was weather forecasting. By the 1880s Finley was widely recognized in the military as a tornado expert. Learn more about Finley's work as well as late nineteenth-century tornado forecasting in this learning leaflet.
2017-08-01T00:00:00Z